<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
*, *::before, *::after {
  padding: 0;
  margin: 0 auto;
  box-sizing: border-box;
}

body {
  background-color: #000;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 400px;
  perspective-origin: center calc(50% - 100px);
  overflow: hidden;
}

.rise {
  position: relative;
  transform-style: preserve-3d;
  -webkit-animation: riseRotate 30s infinite linear;
          animation: riseRotate 30s infinite linear;
}
@-webkit-keyframes riseRotate {
  from {
    transform: rotateX(90deg) rotate(0);
  }
  to {
    transform: rotateX(90deg) rotate(-360deg);
  }
}
@keyframes riseRotate {
  from {
    transform: rotateX(90deg) rotate(0);
  }
  to {
    transform: rotateX(90deg) rotate(-360deg);
  }
}

.step {
  position: absolute;
  width: 25px;
  height: 25px;
  transform-style: preserve-3d;
  -webkit-animation: stepPosition 15s infinite linear;
          animation: stepPosition 15s infinite linear;
}
.step:nth-child(1) {
  top: -75px;
  left: -75px;
}
.step:nth-child(6) {
  top: -75px;
  left: 50px;
}
.step:nth-child(11) {
  top: 50px;
  left: 50px;
}
.step:nth-child(16) {
  top: 50px;
  left: -75px;
}
.step:nth-child(2) {
  top: -75px;
  left: -50px;
}
.step:nth-child(7) {
  top: -50px;
  left: 50px;
}
.step:nth-child(12) {
  top: 50px;
  left: 25px;
}
.step:nth-child(17) {
  top: 25px;
  left: -75px;
}
.step:nth-child(3) {
  top: -75px;
  left: -25px;
}
.step:nth-child(8) {
  top: -25px;
  left: 50px;
}
.step:nth-child(13) {
  top: 50px;
  left: 0px;
}
.step:nth-child(18) {
  top: 0px;
  left: -75px;
}
.step:nth-child(4) {
  top: -75px;
  left: 0px;
}
.step:nth-child(9) {
  top: 0px;
  left: 50px;
}
.step:nth-child(14) {
  top: 50px;
  left: -25px;
}
.step:nth-child(19) {
  top: -25px;
  left: -75px;
}
.step:nth-child(5) {
  top: -75px;
  left: 25px;
}
.step:nth-child(10) {
  top: 25px;
  left: 50px;
}
.step:nth-child(15) {
  top: 50px;
  left: -50px;
}
.step:nth-child(20) {
  top: -50px;
  left: -75px;
}
.step:nth-child(1) {
  -webkit-animation-delay: -15s;
          animation-delay: -15s;
  background-color: #ef8f8f;
}
.step:nth-child(1)::after {
  -webkit-animation-delay: -15s, -15s, 0s;
          animation-delay: -15s, -15s, 0s;
}
.step:nth-child(2) {
  -webkit-animation-delay: -14.25s;
          animation-delay: -14.25s;
  background-color: #efac8f;
}
.step:nth-child(2)::after {
  -webkit-animation-delay: -14.25s, -14.25s, 0s;
          animation-delay: -14.25s, -14.25s, 0s;
}
.step:nth-child(3) {
  -webkit-animation-delay: -13.5s;
          animation-delay: -13.5s;
  background-color: #efc98f;
}
.step:nth-child(3)::after {
  -webkit-animation-delay: -13.5s, -13.5s, 0s;
          animation-delay: -13.5s, -13.5s, 0s;
}
.step:nth-child(4) {
  -webkit-animation-delay: -12.75s;
          animation-delay: -12.75s;
  background-color: #efe68f;
}
.step:nth-child(4)::after {
  -webkit-animation-delay: -12.75s, -12.75s, 0s;
          animation-delay: -12.75s, -12.75s, 0s;
}
.step:nth-child(5) {
  -webkit-animation-delay: -12s;
          animation-delay: -12s;
  background-color: #dcef8f;
}
.step:nth-child(5)::after {
  -webkit-animation-delay: -12s, -12s, 0s;
          animation-delay: -12s, -12s, 0s;
}
.step:nth-child(6) {
  -webkit-animation-delay: -11.25s;
          animation-delay: -11.25s;
  background-color: #bfef8f;
}
.step:nth-child(6)::after {
  -webkit-animation-delay: -11.25s, -11.25s, 0s;
          animation-delay: -11.25s, -11.25s, 0s;
}
.step:nth-child(7) {
  -webkit-animation-delay: -10.5s;
          animation-delay: -10.5s;
  background-color: #a3ef8f;
}
.step:nth-child(7)::after {
  -webkit-animation-delay: -10.5s, -10.5s, 0s;
          animation-delay: -10.5s, -10.5s, 0s;
}
.step:nth-child(8) {
  -webkit-animation-delay: -9.75s;
          animation-delay: -9.75s;
  background-color: #8fef99;
}
.step:nth-child(8)::after {
  -webkit-animation-delay: -9.75s, -9.75s, 0s;
          animation-delay: -9.75s, -9.75s, 0s;
}
.step:nth-child(9) {
  -webkit-animation-delay: -9s;
          animation-delay: -9s;
  background-color: #8fefb6;
}
.step:nth-child(9)::after {
  -webkit-animation-delay: -9s, -9s, 0s;
          animation-delay: -9s, -9s, 0s;
}
.step:nth-child(10) {
  -webkit-animation-delay: -8.25s;
          animation-delay: -8.25s;
  background-color: #8fefd2;
}
.step:nth-child(10)::after {
  -webkit-animation-delay: -8.25s, -8.25s, 0s;
          animation-delay: -8.25s, -8.25s, 0s;
}
.step:nth-child(11) {
  -webkit-animation-delay: -7.5s;
          animation-delay: -7.5s;
  background-color: #8fefef;
}
.step:nth-child(11)::after {
  -webkit-animation-delay: -7.5s, -7.5s, 0s;
          animation-delay: -7.5s, -7.5s, 0s;
}
.step:nth-child(12) {
  -webkit-animation-delay: -6.75s;
          animation-delay: -6.75s;
  background-color: #8fd2ef;
}
.step:nth-child(12)::after {
  -webkit-animation-delay: -6.75s, -6.75s, 0s;
          animation-delay: -6.75s, -6.75s, 0s;
}
.step:nth-child(13) {
  -webkit-animation-delay: -6s;
          animation-delay: -6s;
  background-color: #8fb6ef;
}
.step:nth-child(13)::after {
  -webkit-animation-delay: -6s, -6s, 0s;
          animation-delay: -6s, -6s, 0s;
}
.step:nth-child(14) {
  -webkit-animation-delay: -5.25s;
          animation-delay: -5.25s;
  background-color: #8f99ef;
}
.step:nth-child(14)::after {
  -webkit-animation-delay: -5.25s, -5.25s, 0s;
          animation-delay: -5.25s, -5.25s, 0s;
}
.step:nth-child(15) {
  -webkit-animation-delay: -4.5s;
          animation-delay: -4.5s;
  background-color: #a38fef;
}
.step:nth-child(15)::after {
  -webkit-animation-delay: -4.5s, -4.5s, 0s;
          animation-delay: -4.5s, -4.5s, 0s;
}
.step:nth-child(16) {
  -webkit-animation-delay: -3.75s;
          animation-delay: -3.75s;
  background-color: #bf8fef;
}
.step:nth-child(16)::after {
  -webkit-animation-delay: -3.75s, -3.75s, 0s;
          animation-delay: -3.75s, -3.75s, 0s;
}
.step:nth-child(17) {
  -webkit-animation-delay: -3s;
          animation-delay: -3s;
  background-color: #dc8fef;
}
.step:nth-child(17)::after {
  -webkit-animation-delay: -3s, -3s, 0s;
          animation-delay: -3s, -3s, 0s;
}
.step:nth-child(18) {
  -webkit-animation-delay: -2.25s;
          animation-delay: -2.25s;
  background-color: #ef8fe6;
}
.step:nth-child(18)::after {
  -webkit-animation-delay: -2.25s, -2.25s, 0s;
          animation-delay: -2.25s, -2.25s, 0s;
}
.step:nth-child(19) {
  -webkit-animation-delay: -1.5s;
          animation-delay: -1.5s;
  background-color: #ef8fc9;
}
.step:nth-child(19)::after {
  -webkit-animation-delay: -1.5s, -1.5s, 0s;
          animation-delay: -1.5s, -1.5s, 0s;
}
.step:nth-child(20) {
  -webkit-animation-delay: -0.75s;
          animation-delay: -0.75s;
  background-color: #ef8fac;
}
.step:nth-child(20)::after {
  -webkit-animation-delay: -0.75s, -0.75s, 0s;
          animation-delay: -0.75s, -0.75s, 0s;
}
@-webkit-keyframes stepPosition {
  0% {
    transform: translateZ(600px);
  }
  4%, 5% {
    transform: translateZ(112.5px);
  }
  85%, 87.5% {
    transform: translateZ(-87.5px);
  }
  100% {
    transform: translateZ(-600px);
  }
}
@keyframes stepPosition {
  0% {
    transform: translateZ(600px);
  }
  4%, 5% {
    transform: translateZ(112.5px);
  }
  85%, 87.5% {
    transform: translateZ(-87.5px);
  }
  100% {
    transform: translateZ(-600px);
  }
}
.step::after {
  content: "";
  position: absolute;
  width: 25px;
  height: 25px;
  background-image: radial-gradient(#000, #0000 75%);
  -webkit-animation: shadowPosition 15s infinite linear, shadowOpacity 7.5s infinite alternate ease-in, shadowAngle 15s infinite alternate step-end;
          animation: shadowPosition 15s infinite linear, shadowOpacity 7.5s infinite alternate ease-in, shadowAngle 15s infinite alternate step-end;
  --rotate: 0deg;
}
@-webkit-keyframes shadowPosition {
  0% {
    transform: rotateZ(var(--rotate)) translateX(-500%);
  }
  100% {
    transform: rotateZ(var(--rotate)) translateX(500%);
  }
}
@keyframes shadowPosition {
  0% {
    transform: rotateZ(var(--rotate)) translateX(-500%);
  }
  100% {
    transform: rotateZ(var(--rotate)) translateX(500%);
  }
}
@-webkit-keyframes shadowOpacity {
  0%, 85% {
    opacity: 0;
  }
  100% {
    opacity: 0.4;
  }
}
@keyframes shadowOpacity {
  0%, 85% {
    opacity: 0;
  }
  100% {
    opacity: 0.4;
  }
}
@-webkit-keyframes shadowAngle {
  0% {
    --rotate: 180deg;
  }
  25% {
    --rotate: 270deg;
  }
  50% {
    --rotate: 0deg;
  }
  75% {
    --rotate: 90deg;
  }
}
@keyframes shadowAngle {
  0% {
    --rotate: 180deg;
  }
  25% {
    --rotate: 270deg;
  }
  50% {
    --rotate: 0deg;
  }
  75% {
    --rotate: 90deg;
  }
}
.step > * {
  position: absolute;
  background-color: inherit;
}
.step .top {
  top: 0;
  width: 25px;
  height: 50px;
  background-image: linear-gradient(#0004, #0000 2px calc(100% - 2px), #0004), linear-gradient(90deg, #0004, #0000 2px calc(100% - 2px), #0004), linear-gradient(to bottom, transparent, #0007);
  transform: rotateX(-90deg);
  transform-origin: top;
}
.step .bottom {
  bottom: 0;
  width: 25px;
  height: 50px;
  background-image: linear-gradient(#0004, #0000 2px calc(100% - 2px), #0004), linear-gradient(90deg, #0004, #0000 2px calc(100% - 2px), #0004), linear-gradient(to top, transparent, #0007);
  transform: rotateX(90deg);
  transform-origin: bottom;
}
.step .left {
  left: 0;
  width: 50px;
  height: 25px;
  background-image: linear-gradient(#0004, #0000 2px calc(100% - 2px), #0004), linear-gradient(90deg, #0004, #0000 2px calc(100% - 2px), #0004), linear-gradient(to right, transparent, #0007);
  transform: rotateY(90deg);
  transform-origin: left;
}
.step .right {
  right: 0;
  width: 50px;
  height: 25px;
  background-image: linear-gradient(#0004, #0000 2px calc(100% - 2px), #0004), linear-gradient(90deg, #0004, #0000 2px calc(100% - 2px), #0004), linear-gradient(to left, transparent, #0007);
  transform: rotateY(-90deg);
  transform-origin: right;
}

.ball {
  position: absolute;
  width: 25px;
  height: 25px;
  transform-style: preserve-3d;
  -webkit-animation: ballPosition 15s -7.5s infinite linear, ballAngle 30s infinite linear;
          animation: ballPosition 15s -7.5s infinite linear, ballAngle 30s infinite linear;
}
.ball::before {
  content: "";
  position: absolute;
  width: 25px;
  height: 25px;
  background-image: radial-gradient(circle at bottom, #fff, #222);
  border-radius: 50%;
  -webkit-animation: ballBounce 0.375s infinite alternate ease-out;
          animation: ballBounce 0.375s infinite alternate ease-out;
}
@-webkit-keyframes ballBounce {
  from {
    transform: rotateX(90deg) translateY(12.5px);
  }
  to {
    transform: rotateX(90deg) translateY(50px);
  }
}
@keyframes ballBounce {
  from {
    transform: rotateX(90deg) translateY(12.5px);
  }
  to {
    transform: rotateX(90deg) translateY(50px);
  }
}
@-webkit-keyframes ballPosition {
  0%, 100% {
    top: -75px;
    left: -75px;
  }
  25% {
    top: -75px;
    left: 50px;
  }
  50% {
    top: 50px;
    left: 50px;
  }
  75% {
    top: 50px;
    left: -75px;
  }
}
@keyframes ballPosition {
  0%, 100% {
    top: -75px;
    left: -75px;
  }
  25% {
    top: -75px;
    left: 50px;
  }
  50% {
    top: 50px;
    left: 50px;
  }
  75% {
    top: 50px;
    left: -75px;
  }
}
@-webkit-keyframes ballAngle {
  from {
    transform: rotate(-360deg);
  }
  to {
    transform: rotate(0deg);
  }
}
@keyframes ballAngle {
  from {
    transform: rotate(-360deg);
  }
  to {
    transform: rotate(0deg);
  }
}
    </style>
</head>

<body>
    <div class="rise">
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
        <div class="step"><div class="top"></div><div class="bottom"></div><div class="left"></div><div class="right"></div></div>
      
        <div class="ball"></div>
      </div>
      
    <script>

    </script>
</body>

</html>